1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Galina-37 [17]
2 years ago
5

In a volleyball match Hanein serves the volleyball The height of the the ball above the court

Mathematics
1 answer:
forsale [732]2 years ago
7 0

(a) The maximum height of the ball above the ground is 12.5 m and the time of motion is 1.43 s.

(b) The time taken for the ball to contact the other player at 0.5 m above the ground is 3.0 s.

<h3>Maximum height reached by the ball</h3>

The maximum height reached by the ball is calculated as follows.

At maximum height, the final velocity, v = 0

dh/dt = v = 0

dh/dt = -2(4.9)t + 14

0 = -9.8t + 14

9.8t = 14

t = 1.43 s

H(1.43) = -4.9(1.43)² + 14(1.43) + 2.5

H(1.43) = -10.02 + 20.02 + 2.5

H(1.43) = 12.5 m

<h3>Time to reach maximum height</h3>

12.5 = -4.9t² + 14t + 2.5

4.9t² - 14t + 10 = 0

t = 1.43 s

<h3>Time for the ball to reach 0.5 m above the ground</h3>

0.5 = -4.9t² + 14t + 2.5

4.9t² - 14t + - 2 = 0

t = 3.0 seconds

The complete question is below:

In a volleyball match Hanein serves the volleyball at 14 m/s, from a height of 2.5 m above the court. The height of the ball in flight is estimated using the equation, h = -4.9t² + 14t + 2.5, where t is the time in second and h is height above ground, in metres.

Learn more about time of motion here: brainly.com/question/2364404

#SPJ1

You might be interested in
PLS HELP ILL AWARD BRANLIEST
VARVARA [1.3K]

Answer:

Here is the answer to your question it is in this picture

7 0
3 years ago
What is 6 to the fourth power<br><img src="https://tex.z-dn.net/?f=%20%7B6%7D%5E%7B4%7D%20" id="TexFormula1" title=" {6}^{4} " a
Anon25 [30]
6 to the fourth power is 1296 because 6x6x6x6 gives you 1296
4 0
3 years ago
Read 2 more answers
Little Miss Buffet takes all the money from her piggy bank and puts it into a savings account at her local bank. The bank promis
Dmitriy789 [7]
I am pretty sure that you are correct.
4 0
3 years ago
How many ways can nine skiers finish in first, second, and third place? "fill in the blank text field 1"?
Yuri [45]
The answer would be 9 Permutation 3 (or 9P3) which is equal to 504 possible ways.
3 0
2 years ago
Help please! This is timed! 50 points
kiruha [24]

Answer:

24.96%

Step-by-step explanation:

HOPE I WAS FAST ENOUGH

7 0
3 years ago
Read 2 more answers
Other questions:
  • An oil tank is being filled at a constant rate. The depth of the oil is a function of the number of minutes the tank has been fi
    8·1 answer
  • Find the area of the triangle with the given measurements. Round the solution to the nearest hundredth if necessary. B = 71°, a
    15·2 answers
  • As of 2016, New York City has a population of 8.55 million and a land area of 300 square miles. Manhattan is a section of New Yo
    10·1 answer
  • What is -5(3times-7+4y)
    5·2 answers
  • For the sequence an=3n(n+1) what is the value of a10
    8·2 answers
  • 90,80,12 what's the range
    14·1 answer
  • morgan has $28.75 on a gift card. she buys seven cups of coffee and has $20 left write and solve an equation to determine the co
    10·1 answer
  • Is it possible to prove these triangles congruent by the HL Theorem? <br><br> -Yes <br> -No
    5·2 answers
  • Brody had his computer repaired at Store A. His bill was:
    9·1 answer
  • Select the values that make the inequality -n ≤ 6 true.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!